Dato' Quah graduated from the National University of Singapore in 1984 with LLB (Hons).
He practised in Singapore with the firm of Messrs. Goh Aik Chew & Co. from February 1985 to November 1985, where he obtained experience in both litigation and conveyancing.
Having obtained the necessary exposure and experience he thereafter returned to Malaysia and practised with Messrs. Albar Zulkifly & Yap handling primarily civil litigation. In July 1989, he was made partner with the firm. Effective 1 January 1990, he retired as a partner and established Messrs. Kumar Jaspal Quah & Aishah as a partner. He has been managing the firm as a Managing Partner for a substantial period up till the end of 2005 and retired from legal practice and from the firm to pursue business and other private investments.
During his legal practise, he had made regular Court appearances in the High Courts in Peninsular Malaysia on matters related to corporate, banking and finance and is often called upon by foreign solicitors to handle corporate, banking and finance matters in Malaysia.
He has vast conveyancing corporate regulatory exposure in matters relating to joint ventures, corporate investment matters and land dealings in Malaysia, Myanmar, Hong Kong, Singapore and elsewhere and also had advised on the joint venture development projects carried out by the Malaysian Central Bank (Bank Negara Malaysia) on their building and construction development schemes under their TPU and TPPT schemes.
He has been involved in various business ventures including managing an industrial manufacturing marketing construction groups of companies from end 2005 till 2013 and also thereafter till now have been involved in managing private companies involved in property investment holdings, development planning and general investment holding, mergers, acquisition and disposal activities involving such companies and its assets generally.